Dumping mechanism for automobile trucks.



H. UHLRIG. DUMPING MECHANISM FOR AUTOMOBILE TRUCKS. APPLICATION FILED was. 1918.

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Patentd Apr. 22, 1919.

H. UHLRIG.

DUMPING MECHANISM FOR AUTOMOBILE TRUCKS. APPLICATION min AUG-8 raw.

1 ,301 ,338. Patented Apr. 22, 1919.

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HERMAN UHLRIG, or wnmneo, KANSAS.

'DUHPINGMECHANISM FOR. AUTOMOBILE TRUCKS.

Specification of Letters Patent.

Patented AprL'22, 1919.

Application filed August 8, 1918. serial ll'o. 248,918.

6 State of Kansasphave invented certain new and useful Improvements in Dumping Mechanism= for \Automobile Trucks; and I do declare thefollowingto be a full, clear, and exact description-of the invention; such as w ill 'enable others skilled in the' art to whichit-eppertains to' make and use the same. i l

This invention reiates'to dumpingwagons, andit'relates= mbre specifically to anunproved dumping mechanism for automobile trucks.

One object of this invention-is'to provide a practical efficient and unfailing means whereby a "heavy load can be quickly dumped by manual power;

this'chamcter which supported/he body or bolt of thetruck-or vehicle, independently 1 oli the maneal power; while'in its dumping 25 position;

Another object 'isto provide 41 dumping mechanism Whisk -securely holds" the body in itsnormal'obnonidumping. )OSi iiOIl WllllG traveling or while? being-loaded -Another:object-is-to' provide s, pair of combined pivotal andnon-pivotal supporting elements by which the greater [portion of the load is supported so that the pivotal supportingelement isrelievedof the weight andshock strains when the vehicle as traveling or is being loaded Another objectzis to provide practical and efiicient means for protecting the dumping mechanism *from' lateral strains;

Another obj act. is to provide a, mechanism of this character which is strong, durable, simple of construction and operation, can be manufactured at a comparatively low'cost and may be applied to any automobile truck of ordinary construction.

Other objects and-advantages may become apparent topersons who read the following details'of description in connection with the accompanyingdrawings in which- Figure 1 is a side elevation of an automobile frame or chassis and base or body provided with my improved (lumping mechanism. the parts being shown in a normal or non-dumping position;

Another object 218130: provide a device of Fig.v 2 :is a similar view 1 except that the parts are shown in the dumping *position;

Fig. 3 is a transverse vertical-"sectional view, the section beingtaken'asubstantially along the line:33 of Fig. 1;

Fig 4 is a fragmentaryudetail in transverse vertical section substantially along the line H ofi-Figi 1;- and,

Fig. 5 :isa. detail view in transverse vertical section along. the Iine 5-Q-5 of Fig: 2, the parts being shown lill the dumping. osition.

Referring. to. these drawings-dun etail in which similar 1 reference characters correspond with similarl'parts throughoutithe several views the automobile-chassis on supporting frame 6' may be of anynrdinary'con- $tructi0n,' and the same istrue oflthe box or body 7; and'these parts will nbt be" described in detail.

Upon the. inner end of :the' chassis 6 is secured a supporting beam: 8 which'extends transversely over the chassis and enmesheyond the sides thereof Upon the-laterally projecting ends of the beam 8 is secured a pair of combined .-pivotal iendunompivotal supporting elements or pletes 91 homing bearings or hinge-elements 10 formed integrally therewith. These'p'lates 9 areseeured to the beam 8 by any appropriate seeufingrmeans, such as-bolts and nuts indieatediat 11. A second pair ofihinge elements-3.2 :issecured to the baseor body 7, and one orimore pivot elements 13 uniteiwith the-elements- '10 and 12 to formhinges on which the-body- 7 may be tilted *for dumpingits' 00nbents. i However, when the-box or body 7 is baingdoaded or is traveling, its weight is supported entirely independently at the lhinge elements, the plates 9 bearing the: greater; portion of the weight of the body and its-contents.

The frontend of the body 7 is'suppo'rted by' a beam 14: which issecured to the chassis 6 forwardly of the beam 8, and thi's bealn 14 has its ends projecting laterally overnnd beyond the sides of the chassis. The beams 8 and l lptherefore, combine to support the weight of the box or the body and its contents. Moreover, this beam 14 isprovided with bearings 15 in which is journaled a roclcsha ft 16 having a pair of parallel arms 17 and an arm 18. On the latter of these arms is secured a handlebar or actuating element 19, and it will be seen that the elements 16 to 19 inclusive combine to form a lever which is fulcrumed or pivotally mounted in the bearings 15. Pivots or pivot elements 20 and 21 are engaged respectively with the arms 17 and the body 7, and two pairs of links 22 connect the arms 17 with the box or body 7 through the medium of the pivots 20 and '21. Although I might dispense with one link of each pair, or might otherwise modify the connection between the rock-shaft 16 and body 7, the mechanism illustrated in Figs. 3 and 5 of the drawings is the preferred embodiment of my invention. In the foregoing description of the connection between the shaft 16 and box or body 7 it is to be understood that the longitudinal beams 7, through which the pivots 21 extend, are elements of the box or body 7.

The box or body 7 comprises cross beams 7", the front one of which enters into the combination of the present invention, as will now be described. Upon the beam 14 is securedta block .or bar- 23 which is of the length approximately equalto the distance between the beams 7. This block is secured to the beam 14 by means of bolts 25, and its ends 26 constitute abutments or shoulders against which the inner sides of the beams 7 press when the body '7vtends to move laterally. The forward side of the block 23 engages with the cross front beam 7 when the body 7 tendsto move rearward, and the inner links 22 engage with the rear side of the V block 23 when the body 7 tends to move forward.

To the ivots 20 are secured two chains or flexible e ements 27, and the rear ends of these flexible elements are secured to the body 7 through the medium of apertured straps 28.-'Each element 27 and the corresponding element 28 may be considered as a unitary'flexible element, and each of these elements constitutes a means for limiting the forward movement of the contiguous pivot 20. In other words, the flexible element 2728 combines with the shaft 16 and pivot elements 21 to hold the pivots 20 in a position slightly forward of the common axial plane of the shaft 16 and pivot elements 21. This feature of the invention is of very great im ortance, for it enables the front end of the Ody-7 to be supported by the manually operable dumping mechanism entirely independently of any manual power or effort, as it will be obvious from a careful observation of Fig. 2.

In dumping the box, the handle 19 is swung from the position shown in Fig. 1 to that'which is shown in Fig. 2, and the said handle is then engaged with a lug or keeper 29, and this prevents the handle from swinging upwardly, but no means is provided to prevent the handle from swinging downwardly except the flexible elements 27-28. Therefore, even if the handle should become disengaged from the keeper 29 the element 2728 would prevent the return of the box to its normal position. Likewise when the box is in its normal position, the keeper 30 engages with the handle 19; but the links 22 and arms 17 securely hold the body in its normal position because the pivotal connections 16, 20 and 21 are substantially in alinement with one another.

Although I have described this embodiment of my invention very specifically, it is not intended to limit this invention to these exact details of construction and arrange ment of parts, but I am entitled to make changes within the scope of the inventive idea as disclosed in the foregoing description and following claims. a i

What I claim as my invention is:

1. In a dumping vehicle comprising a supporting frame and a box mounted to be rocked on the frame; a lever fulcrumed on said frame, a link pivotally connected to said lever and to said box, and a flexible element connected to said box and to the pivotally connected lever and link, the said flexible element being just sufficiently long to cooperate with said box and lever in holding the said pivotal connection at a. point slightly beyond the common axial plane of the fulcrum of said lever and the pivot that connects said link to said box, substantially as shown and described.

2. In a dumping vehicle comprising a supporting frame and a box mounted to be rocked on said frame; a rock-shaft mounted on said frame, an actuating element carried by said rock-shaft" and operable to rock the latter, a pair of armscarried by said rock shaft, a link for each of said arms, pivots each connecting one of said links to a corresponding one of said arms, pivot elements whereby opposite sides of said 'box are connected to the respective links, and a flexible clement connected to said box and to one of said pivots that connect said links to the arms, said flexible element having just the proper length between its connections for cooperating with the adjacent rock-shaft and pivot element in holding the contiguous pivot beyond the common axial plane of said rock-shaft and pivot element with relation to the point wheresaid flexible element connects with said box. i

3. In a dumping vehicle comprising a supporting frame'and a box mounted to be rocked on said frame; a beam extending laterally across and supported by said frame and supporting the front end of said box, a lover, a bearing on said beam and pivotally supporting said lever. means on said beam to prevent horizontal movement of said box relative to the beam, a link, a pivot connecting said link to said lever, a pivotclement connecting said link to said box, and a flexible element connected to said box and to said pivotally connected lever and In testimony whereof I have hereunto set ling in the proper lieliatiolrlx i133 coiipemte with my hand.

sai lever and lin or 0 ing their vet beyond the common axial plane of saidiff HERMAN UHLRIG' 5 ing and said pivot element with relati n to Witnesses:

the point where said flexible element con- E. M. BRUNNEB,

neots with said box. W. C. BI'I'I'MANN,

Copies of this patent may be obtained for five cents each, by addressing the "commissioner of Patentz, Washington, D. 0." 

